US11208983B2 - Wind turbine pitch actuator mounting structure - Google Patents

Wind turbine pitch actuator mounting structure Download PDF

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Publication number
US11208983B2
US11208983B2 US16/068,793 US201716068793A US11208983B2 US 11208983 B2 US11208983 B2 US 11208983B2 US 201716068793 A US201716068793 A US 201716068793A US 11208983 B2 US11208983 B2 US 11208983B2
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United States
Prior art keywords
legs
hub
actuator
pitch
wind turbine
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US16/068,793
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English (en)
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US20210207574A1 (en
Inventor
Simon Kabus
Jacob Hviid Nielsen
Jesper Lykkegaard Neubauer
Erik Garde
Lasse Køgs Andersen
Frank Møller Hansen
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Vestas Wind Systems AS
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Vestas Wind Systems AS
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Assigned to VESTAS WIND SYSTEMS A/S reassignment VESTAS WIND SYSTEMS A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KABUS, SIIMON, NEUBAUER, Jesper Lykkegaard, NIELSEN, JACOB HVIID, ANDERSEN, Lasse Køgs, GARDE, Erik, HANSEN, Frank Møller
Publication of US20210207574A1 publication Critical patent/US20210207574A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/60—Control system actuates through
    • F05B2270/604—Control system actuates through hydraulic actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the known mounting arrangements for the cylinder are relatively expensive due in part to the provision of multiple pivot bearings.
  • the pivot bearings also incur wear over time and require servicing or replacement during the lifetime of the wind turbine.
  • the pitch actuator is therefore able to pivot at or near its first end about a pivot axis extending through the actuator attachment portion of the mounting structure.
  • This pivot axis is located within the first plane and is generally parallel to the pitch axis of the blade when the legs of the mounting structure are straight, i.e. when the legs are not bent under load.
  • the orientation of this pivot axis in the first plane will change slightly such that it is transverse but not strictly perpendicular to the pitch axis. Accordingly, the absolute orientation of the second plane will vary slightly when the legs are bending, whilst remaining substantially perpendicular to the first plane.
  • each of said one or more legs is an integral unit. ‘Integral unit’ meaning that it is a casted and/or machined single unit.
  • FIG. 2 is a perspective view of a hub of the wind turbine of FIG. 1 , in which a linear pitch actuator is shown connected to the hub by means of a mounting structure according to an embodiment of the present invention
  • FIGS. 5 a and 5 b are schematic views illustrating the mounting structure flexing in use when under load to facilitate pivoting of the pitch actuator.
  • the wind turbine blades 18 are subject to significant loads, including loads acting both parallel and perpendicular to the pitch axes 40 (shown in FIG. 2 ) of the blades 18 .
  • the mounting structure 62 is configured to absorb and accommodate these loads to prevent damage to the pitch actuator 38 , i.e. to prevent the loads from causing the pitch actuator 38 to bend or buckle in use, as will now be described with reference to FIGS. 5 a and 5 b.
  • this figure also shows the pivot axis 106 described above and shown in FIG. 4 .
  • the actuator 38 remains free to pivot about this axis 106 during flexing of the legs 64 , and it will be appreciated that the actuator 38 pivots about this axis 106 in a second plane substantially perpendicular to the first plane, i.e. substantially perpendicular to the plane of the page comprising FIG. 5 a . It will also be appreciated, with reference to FIG. 2 , that this second plane is substantially perpendicular to the plane comprising both the rotor axis 32 and the pitch axis 40 of the relevant blade 18 .
  • the flexibility of the legs 64 may be achieved by other means or by other configurations of the legs 64 .
  • the intermediate portions 74 of the legs 64 may be made from a different material to adjacent portions of the leg 64 , for example it may be made from a more flexible material such as rubber.
  • the intermediate portion 74 of the leg 64 could have a structure that promotes or increases flexibility such as a concertina structure, or the intermediate portion 74 may comprise a spring.
  • the mounting structure 62 in the above examples is bolted to the hub 20 .
  • the mounting structure 62 or parts of the mounting structure 62 may be integral with the hub 20 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)
US16/068,793 2016-02-04 2017-01-05 Wind turbine pitch actuator mounting structure Active 2038-12-19 US11208983B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA201670061 2016-02-04
DKPA201670061 2016-02-04
PCT/DK2017/050001 WO2017133740A1 (fr) 2016-02-04 2017-01-05 Structure de montage d'actionneur de pas d'éolienne

Publications (2)

Publication Number Publication Date
US20210207574A1 US20210207574A1 (en) 2021-07-08
US11208983B2 true US11208983B2 (en) 2021-12-28

Family

ID=57867964

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/068,793 Active 2038-12-19 US11208983B2 (en) 2016-02-04 2017-01-05 Wind turbine pitch actuator mounting structure

Country Status (5)

Country Link
US (1) US11208983B2 (fr)
EP (1) EP3411591B1 (fr)
CN (1) CN108884809B (fr)
ES (1) ES2863426T3 (fr)
WO (1) WO2017133740A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023160763A1 (fr) * 2022-02-25 2023-08-31 Vestas Wind Systems A/S Éolienne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11187206B2 (en) 2017-10-17 2021-11-30 Vestas Wind Systems A/S Pitch system for a wind turbine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201092931Y (zh) 2007-06-04 2008-07-30 无锡宝南机器制造有限公司 风力发电机的独立液压变桨机构
EP1995453A1 (fr) 2007-05-25 2008-11-26 Siemens Aktiengesellschaft Dispositif pour le réglage de pas d'une pale de rotor d'éolienne
CN101324220A (zh) 2008-07-17 2008-12-17 无锡宝南机器制造有限公司 风力发电机的变桨机构
JP2010203260A (ja) * 2009-02-27 2010-09-16 Mitsubishi Heavy Ind Ltd 風力発電装置のピッチ駆動装置および風力発電装置
US20100276932A1 (en) 2008-12-19 2010-11-04 Mitsubishi Heavy Industries, Ltd. Pitch drive device of wind turbine generator and wind turbine generator
US20120063901A1 (en) * 2011-02-15 2012-03-15 Mitsubishi Heavy Industries, Ltd. Wind turbine blade pitch-control system, and wind turbine rotor and wind turbine generator provided with the same
CN202228272U (zh) 2011-09-22 2012-05-23 三一电气有限责任公司 一种变桨装置及风力发电机
US20120189445A1 (en) 2009-10-07 2012-07-26 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine
CN102884315A (zh) 2010-04-12 2013-01-16 乌本普罗帕蒂斯有限公司 风能设备方位或变桨驱动装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1995453A1 (fr) 2007-05-25 2008-11-26 Siemens Aktiengesellschaft Dispositif pour le réglage de pas d'une pale de rotor d'éolienne
CN201092931Y (zh) 2007-06-04 2008-07-30 无锡宝南机器制造有限公司 风力发电机的独立液压变桨机构
CN101324220A (zh) 2008-07-17 2008-12-17 无锡宝南机器制造有限公司 风力发电机的变桨机构
US20100276932A1 (en) 2008-12-19 2010-11-04 Mitsubishi Heavy Industries, Ltd. Pitch drive device of wind turbine generator and wind turbine generator
CA2669956C (fr) 2008-12-19 2012-06-12 Mitsubishi Heavy Industries, Ltd. Dispositif de commande de pas d'aerogenerateur et aerogenerateur
JP2010203260A (ja) * 2009-02-27 2010-09-16 Mitsubishi Heavy Ind Ltd 風力発電装置のピッチ駆動装置および風力発電装置
US20120189445A1 (en) 2009-10-07 2012-07-26 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine
CN102884315A (zh) 2010-04-12 2013-01-16 乌本普罗帕蒂斯有限公司 风能设备方位或变桨驱动装置
US20120063901A1 (en) * 2011-02-15 2012-03-15 Mitsubishi Heavy Industries, Ltd. Wind turbine blade pitch-control system, and wind turbine rotor and wind turbine generator provided with the same
CN202228272U (zh) 2011-09-22 2012-05-23 三一电气有限责任公司 一种变桨装置及风力发电机

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
China National Intellectual Property Administration, First Notification of Office Action in CN Application No. 201780009735.2, dated Jul. 12, 2019.
Danish Patent and Trademark Office, Search and Examination Report in PA 2016 70061, dated Aug. 16, 2016.
European Patent Office, Examination Report in EP Application No. 17701025.3, dated Feb. 20, 2020.
European Patent Office, International Search Report and Written Opinion in PCT Application No. PCT/DK2017/050001, dated Apr. 24, 2017.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023160763A1 (fr) * 2022-02-25 2023-08-31 Vestas Wind Systems A/S Éolienne

Also Published As

Publication number Publication date
CN108884809A (zh) 2018-11-23
EP3411591A1 (fr) 2018-12-12
CN108884809B (zh) 2020-08-25
WO2017133740A8 (fr) 2018-02-22
EP3411591B1 (fr) 2021-03-10
ES2863426T3 (es) 2021-10-11
WO2017133740A1 (fr) 2017-08-10
US20210207574A1 (en) 2021-07-08

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